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【单选题】
产生生物电的跨膜离子移动属于A.
简单扩散
B.
通道中介的易化扩散
C.
载体中介的易化扩散
D.
入胞
E.
出胞
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【单选题】—Linda, I called you this morning, but nobody answered the phone. —I'm sorry. I football with my friends then.
A.
play
B.
played
C.
am playing
D.
was playing
【单选题】千方百计地使自己有别于竞争者，凸现和形成鲜明的个性和特色，以创造和提升企业竞争优势的战略，这种战略称为
A.
总成本领先战略
B.
差异化战略
C.
集中化战略
D.
无差异战略
【单选题】14-55. Which of the following sentences indicates POSSIBILITY?
A.
The moon cannot always be at the full.
B.
You cannot smoke inside the building.
C.
He cannot come today.
D.
She cannot play the piano.
【简答题】Hema Co makes plastic bottle for drink industries. One of its most popular products is the Hema. The standard amount of plastic per chair is 0.2 kg and the standard cost per kg is $55. Budgeted produc...
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